Annual report pursuant to Section 13 and 15(d)

Funds Held for Clients and Corporate Investments (Details)

v2.4.0.8
Funds Held for Clients and Corporate Investments (Details) (USD $)
In Millions, unless otherwise specified
May 31, 2014
May 31, 2013
Type of issue:    
Funds held for clients money market securities and other cash equivalents, Amortized cost $ 1,579.2 $ 1,137.7
Funds held for clients money market securities and other cash equivalents, Gross unrealized gains 0 0
Funds held for clients money market securities and other cash equivalents, Gross unrealized losses 0 0
Funds held for clients money market securities and other cash equivalents, Fair value 1,579.2 1,137.7
Available-for-sale securities:    
Amortized cost 3,356.9 3,656.7
Gross unrealized gains 37.5 40.4
Gross unrealized losses (3.0) (5.7)
Fair value 3,391.4 3,691.4
Other, Amortized cost 10.6 9.5
Other, Gross unrealized gains 1.7 1.2
Other, Gross unrealized losses 0 0
Other, Fair value 12.3 10.7
Total funds held for clients and corporate investments, Amortized cost 4,946.7 4,803.9
Total funds held for clients and corporate investments, Gross unrealized gains 39.2 41.6
Total funds held for clients and corporate investments, Gross unrealized losses (3.0) (5.7)
Total funds held for clients and corporate investments, Fair value 4,982.9 4,839.8
General obligation municipal bonds [Member]
    
Available-for-sale securities:    
Amortized cost 1,605.4 1,432.9
Gross unrealized gains 25.0 27.4
Gross unrealized losses (1.9) (3.5)
Fair value 1,628.5 1,456.8
Pre-refunded municipal bonds [Member]
    
Available-for-sale securities:    
Amortized cost 140.4 [1] 201.0 [1]
Gross unrealized gains 2.4 [1] 2.9 [1]
Gross unrealized losses 0 [1] 0 [1]
Fair value 142.8 [1] 203.9 [1]
Revenue municipal bonds [Member]
    
Available-for-sale securities:    
Amortized cost 858.8 746.1
Gross unrealized gains 10.1 10.1
Gross unrealized losses (1.1) (2.2)
Fair value 867.8 754.0
Variable rate demand notes [Member]
    
Available-for-sale securities:    
Amortized cost 752.3 1,276.7
Gross unrealized gains 0 0
Gross unrealized losses 0 0
Fair value $ 752.3 $ 1,276.7
[1] (1) Pre-refunded municipal bonds are secured by an escrow fund of U.S. government obligations.